Lumber stamping device



Nov. 8, 1932. G. LUNDEN 1,836,564

LUMBER STAMPING DEVICE Filed March 28, 1931 L'IIIIIIIIIIIIII l N VENTOR.

Gus [unden A TTORNEY.

Patented Nov. 8, 1932 "UNlTED STATES GUS LUNDEN, OF COLVILLE, WASHINGTONLUMBER STAMPING DEVICE Application filed March 28, 1931. Serial No.525,999.

My invention relates to lumber stamping devices and certain objects ofthe invention are to provide a stamping device that is adapted to beattached to a molding machine and automatically actuated by the moldingor other strip of lumber as it moves outwardly from the said machine.Further objects of the invention are to provide means whereby aplurality of moldings may be stamped at one time, means whereby thedevice may be adjustably raised and lowered, positive means forsupplying ink to the device and for retaining the inking element free ofcontact therewith when not in engagement with the stamping type, andmeans whereby the device is adapted for stamping lumber passing inengagement over its top as well as under its bottom.

A prac ical embodimentof the invention is illustrated in theaccompanying drawing forming a part of the specification in which likecharacters of reference indicate corresponding parts in all the views,the said in vention being more fully described hereinafter and thenpointed out in the appended claims. In the drawing Figure 1 is a generalview in side elevation showing the device connected to a moldingmachine;

Fig. 2 is an enlarged view of the device in longitudinal verticalsection taken substan tially on a broken line 2, 2 of Fig.

Fig. 3 is a fragmentary detail view partly in section and partly inelevation and showing the engaging relation of a stamping roller and aninking spool;

Fig. 4 is a view in transverse vertical section of the device taken on abroken line 4, 1 of Fig. 2.;

Fig. 5 is a bottom plan view of the device with certain parts brokenaway; and

Fig. 6 is a detail view in perspective showing the arrangement wherebymoldings may be stamped while passing over the top of the device.

Referring to the drawings throughout which like numbers indicate likeparts, the numeral 5 designates a molding machine hav ing a bracket arm6 fixed thereto and whose outer end supports the casing 7 of my device.

jection and engaging the beveled upright member, provides means wherebythe casing may be secured 111 any desired position. The front member '13of the casing is detachable and may be secured thereto by screws 14 asshown in Fig. 5.

A shaft 15 is fixedly supported by the cats ing 7 together with itsfront member 13 and a disc member 16 is disposed within the casingadjacent to and concentric with an annular inward projection 17 of therear wall of the casing. Said disc member is integrally provided with aforwardly extending sleeve bearing portion 18 which rides freely andsnugly on said shaft. A pair of inking rollers 19 are keyed to saidsleeve and each is provided with a rubber rim or banding 20. Said rubberrims are locked into dovetail grooves around the periphery of saidrollers by means of annular rings 21 that may be secured to said rollersand flush therewith by screws 22. The periphery of the rollers or ratherof the rubber rims project to a slight extent through openings in boththe top and bottom of the casing and said rims are provided with reliefnumerals, letters or other type, as at 23. Snugly and slidablyinterposed between the annular pro jection 17 of the rear casing walland the disc member 16 is a locking dog 24. Said dog is provided with aslot 25 through which the shaft 15 extends, and is slidably mounted in agroove 26 in the rear face of the said disc member. The outer or headend of said dog is relatively thick and is provided with a shoulder 27The shoulder 27 of the slidable locking dog 24: projects over, oroverlaps the annular proj ection 17 of the rear casing wall. Saidprojection is provided with a groove 28 extending half way around itscircumference and 1S Shortly before reaching said lower stop the outerend of the dog will contact with the 'molding and the dog will thusbemoved inadapted to receive said shoulder when the dog is moved to itsinward position, and the ends of said semi-annular groove respectivelyprovide upper and lower stops or abutments 29 and 30 for engagement bythe locking dog. In the normal position said locking dog drops down tothe full line position shown in Figs. 2 and i with its shoulder free ofengagement with said stops and with its head portion projecting ordepending exteriorly of the casing 7 in readiness to be engaged by apiece of molding or other strip of lumber as will be understood.

Referring again to Fig. 2, the outer end of a molding or other piece oflumber, as shown at 31, upon emerging from the moldingmachine willstrike the projecting end of the flocking dog. 24 and will alsofrictionally engage one of the rubber rims 20. It may here be statedthat while I have shown two rollers .19 and rubber rims therefor wherebytwo pieces of molding may be stamped at one time,

it will be understoodthat one or more of said rollers may be used asdesired, and the description will now be confined to only one 1 roller.'As said piece of molding continues its outward movement its frictionalengagement with said rubber rim will revolve the .roller in a clockwisedirection carrying the disc member 16, keyed to its sleeve 18, aroundwith it, and likewise the locking dog.

In its initial rotary movement, the locking dog 24 being in the outwardposition, its shoulder 27 will passover or by the lower stop 30 and willride on the periphery of the annular casing projection 17. Upon reachinga vertical position said dog will drop down over the upper stop 29 intothe semi-annular groove 28 and will continue its rotary movement withoutobstruction until it again reaches the lower stop, or in other wordsuntil the roller 19 has completed one revolution. 1 In completing thisrevolution the numbers or letters 23 on the rubber rim 20 will, ofcourse,

impress themselves upon the molding 31 that in frictional engagementtherewith.

wardly whereby it will abut against said lower stop, thuslockingtheentire mechanism and keeping it lockeduntil this particular piece ofmolding has passed clear of the device at which time the dog will againdrop down to its normal outward position in readinessfor stamping thenext p ece of molding.

: The means for inking the raised type 23 -on the rubber rim 20comprises an inking spool 32 supported by arms 33 that are pivotedt th 9t4 'hl o .e c.s-n,, a u and earn en a e spool in engagement therewith atall times. The type is slightly raised and the inking spool is providedwith shoulders 37. When said type is in engagement with the inking pad38 on the spool said shoulders will be raised away from the roller andwhen the raised type has passed by the shoulders will seat on the rollerthusretaining the inking pad clear of the roller and its rubber rim andprevent the ink from contacting withthe roller and smearing-the strip oflumber that is passing through. i

The foregoing description deals with the method of stamping moldings orother strips of lumber while same is passing under the device. Referringto Fig. 6 of the drawing, 1 have shown means whereby the device isadapted to stamp lumber while passing over and in engagement with itstop. Said means comprises a sprin 39 having oneend connected tothecasing 7 and having its other end arranged to supporta flange member40 that is arranged to engage under the shoulder 27 of the locking dog24. said flange member is provided with an arm 41 that is pivoted to thecasing at as and bears upwardly against a shoulder 43 ofsaid casingwhereby its upward movement is limited and whereby the fiange member,actuated by the spring, will lift the locking dog the correct distanceso that its shoulder 27 will clear the upper stop 29. p v I Theconstruction and operation of this arrangement for stamping lumberpassing over its top is otherwise the same as the hereinbefore describedmeans for stamping lumber carry the inking roller 19 around one completerevolution whereby the stamping operation will be performed aspreviously described. As before, the dog will engage its outer end underthe lumber strip on the next revolution and will thus be depressed sothat it will abut against the stop 29 and will thus lock the device ininactive position until the lumber strip haspassed out of engagementtherewith.

Having thus described my invention, what I claim and desire to secure byLetters Patent ofthe United States is I i V 1. The combination with alumber molding machine of a lumber stamping device comprising a casing,a worm andbracket connection between the machine and casing where by thecasing may be adjustably raised and lowered,-a shaft fixedly suppertedtransversely of the casing, adisc member revolubly mounted on the shaft,one or more printing rollers fixedly connected to the disc member, arubber rim having raised type for the rollers that project .exteriorlyof the casing,

means forlocking said rims to said rollers, a

locking dog interposed between the rear casing wall and the disc memberand slidably disposed in a groove in the rear face of said disc member,said shaft disposed through a slot in the inner end portion of the dog,a shoulder for the outer end portion of the dog, upper and lower stopsfor the rear casing wall arranged to clear the dog when said dog is inits outward position and to be engaged by said dog when same is in itsinward position, ink supplying means for the rim type, the outer end ofsaid dog arranged to be engaged by the end of a strip of lumber passingoutwardly from the machine, and the rubber rim arranged to befrictionally engaged by said lumber strip during its passage outwardlyfrom the machine.

2. A lumber stamping device having in combination a casing, a shaftfixed transversely of the casing, a disc member revolubly supported onthe shaft, a printing roller connected to the disc, a rubber rim for theroller having raised type, a locking dog interposed between the rearcasing wall and the disc member and slidably disposed in a groove ofsaid disc, said shaft disposed through a slot in the dog, and upper andlower stops for the rear casing wall arranged to clear the dog when saiddog is in its outward position and to be engaged by said dog when sameis in its inward position.

3. A lumber stamping device having in combination a casing with upperand lower openings, a shaft fixed transversely of the casing, a printingroller revolubly mounted on the shaft and having peripheral raised type,a locking dog slida-bly connected to said roller, said dog adapted toproject through said openings when in the outward position, and upperand lower stops for the casing arranged to clear the dog when said dogis in the outward position and to be engaged by said dog when same is inits inward position.

at. A lumber stamping device having in combination a casingmith upperand lower openings, a shaft for the casing, a printing roller revolublymounted on the shaft and having peripheral raised type arranged toproject slightly through the openings in the casing, a locking dogslidably connected to said roller, said dog adapted to project throughsaid casing openings when in the outward position, said casing adaptedto be mounted on a planing machine with its locking dog disposed in thepath of lumber emerging therefrom and with the printing roller arrangedto be frictionally engaged and rotated by said outwardly moving lumber,and stop means for the dog whereby the printing roller is locked inposition upon completing one revolution.

5. A lumber stamping device having in combination a. casing, a rotarystamping element mounted withinthe casing with a portion of itsperiphery disposed exteriorly sition when said element has been causedto I complete one revolution.

In testimony whereof I aflix my signature.

GUS LUNDEN.

